Pentium D 820 vs Celeron G555

Pentium D 820

2 Cores2 Thrd2 WWMax: 2.8 GHz2005

Celeron G555

2 Cores2 Thrd65 WWMax: 2.7 GHz2012

Performance Spectrum - CPU

Pentium D 820

2 / 2

1,412

0.0%

1,427

+1.1%

About PassMark

PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.

Value Upgrade Path

This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money. The Pentium D 820 is positioned at rank 1065 and the Celeron G555 is on rank 634, so the Celeron G555 offers better cost-efficiency for playing games.

MSRP is the manufacturer's suggested retail price.•
Avg price is the current average price collected from markets across the web.

Performance Per Dollar Pentium D 820

Ryzen 9 7950X

MSRP: $194|Avg: $20

53194%

Core i9-10900T

MSRP: $120|Avg: $5

50263%

Ryzen 3 PRO 4355GE

MSRP: $423|Avg: $5

36495%

Ryzen Threadripper 3960X

MSRP: $1399|Avg: $85

10994%

Ryzen 9 9950X

MSRP: $649|Avg: $129

8709%

Ryzen 5 8400F

MSRP: $303|Avg: $55

7618%

Ryzen 7 PRO 2700

MSRP: $299|Avg: $60

4363%

Ryzen 5 2600X

MSRP: $229|Avg: $55

4306%

Ryzen 3 PRO 5350G

MSRP: $150|Avg: $60

3921%

#10

Core Ultra 5 245KF

MSRP: $294|Avg: $189

3921%

#11

Ryzen 5 5500

MSRP: $159|Avg: $85

3877%

#12

Ryzen 5 3600

MSRP: $199|Avg: $80

3772%

#13

Core i3-9100E

MSRP: $202|Avg: $30

3720%

#14

Core Ultra 5 245K

MSRP: $319|Avg: $200

3705%

#15

Core i3-8300T

MSRP: $138|Avg: $25

3671%

#1065

Pentium D 820

MSRP: $241|Avg: $20

100%

#1066

Celeron 2.10

MSRP: $49|Avg: $49

99%

#1067

Core i7-950

MSRP: $562|Avg: $15

99%

#1068

Sempron 3100+

MSRP: $65|Avg: $15

98%

#1069

Athlon II X4 635

MSRP: $400|Avg: $250

96%

#1070

Core 2 Duo E6750

MSRP: $183|Avg: $15

96%

#1071

Core i7-940

MSRP: $562|Avg: $90

92%

#1072

Celeron 2.40

MSRP: $69|Avg: $13

85%

#1073

Sempron 2800+

MSRP: $65|Avg: $29

84%

#1074

Athlon 64 3100+

MSRP: $100|Avg: $15

81%

#1075

Sempron 3600+

MSRP: $105|Avg: $20

79%

#1076

Celeron 2.80

MSRP: $100|Avg: $15

73%

#1077

Athlon 64 X2 6000+

MSRP: $450|Avg: $20

69%

#1078

Athlon 64 3600+

MSRP: $149|Avg: $15

68%

#1079

Core 2 Quad Q6700

MSRP: $530|Avg: $50

67%

#1080

Athlon 64 2600+

MSRP: $100|Avg: $5

67%

Based on actual market prices and performance synthetic scores.

Performance Per Dollar Celeron G555

Ryzen 9 7950X

MSRP: $194|Avg: $20

11360%

Core i9-10900T

MSRP: $120|Avg: $5

10734%

Ryzen 3 PRO 4355GE

MSRP: $423|Avg: $5

7794%

Ryzen Threadripper 3960X

MSRP: $1399|Avg: $85

2348%

Ryzen 9 9950X

MSRP: $649|Avg: $129

1860%

Ryzen 5 8400F

MSRP: $303|Avg: $55

1627%

Ryzen 7 PRO 2700

MSRP: $299|Avg: $60

932%

Ryzen 5 2600X

MSRP: $229|Avg: $55

920%

Ryzen 3 PRO 5350G

MSRP: $150|Avg: $60

837%

#10

Core Ultra 5 245KF

MSRP: $294|Avg: $189

837%

#11

Ryzen 5 5500

MSRP: $159|Avg: $85

828%

#12

Ryzen 5 3600

MSRP: $199|Avg: $80

806%

#13

Core i3-9100E

MSRP: $202|Avg: $30

794%

#14

Core Ultra 5 245K

MSRP: $319|Avg: $200

791%

#15

Core i3-8300T

MSRP: $138|Avg: $25

784%

#387

Ryzen Embedded V1807B

MSRP: $300|Avg: $300

98%

#634

Celeron G555

MSRP: $52|Avg: $15

100%

#635

Celeron G530

MSRP: $42|Avg: $10

100%

#636

Core i3-7350K

MSRP: $179|Avg: $45

99%

#637

FX-4130

MSRP: $100|Avg: $25

99%

#638

Athlon II X2 280

MSRP: $50|Avg: $15

99%

#639

Celeron G540T

MSRP: $42|Avg: $42

99%

#640

FX-8300

MSRP: $197|Avg: $50

99%

#641

Core i5-6600

MSRP: $224|Avg: $90

99%

#642

Core i5-4460

MSRP: $182|Avg: $40

98%

#645

Core i3-4170T

MSRP: $117|Avg: $17

98%

#646

FX-8370E

MSRP: $199|Avg: $80

97%

#647

Core i5-4590S

MSRP: $192|Avg: $45

97%

#648

Pentium G2020

MSRP: $64|Avg: $15

97%

#649

Pentium G3450

MSRP: $82|Avg: $25

97%

Based on actual market prices and performance synthetic scores.

Performance Comparison

About PassMark

🏆 Chipversus Verdict

🚀 Performance Leadership

Generational Difference: This comparison involves processors from different technological eras. The Celeron G555 (2012) utilizes 32 nm technology and DDR3, providing a fundamental performance advantage.

Insight	Pentium D 820	Celeron G555
Gaming	❌ Lower gaming performance	✅ Superior gaming performance
Workstation	❌ Weaker in multi-core tasks	✅ Better multi-core power
Price	⚠️ Higher cost ($20)	✅ More affordable ($15)
Longevity	🛑 Legacy (NetBurst (2000−2006) / 90 nm)	🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm)

💎 Value Proposition

The Pentium D 820 (2005) relies on 90 nm technology and DDR1, DDR2, DDR3, placing it in a different performance category relative to modern standards.

Insight	Pentium D 820	Celeron G555
Cost Efficiency	❌ Lower cost efficiency	✅ Better overall value (+35%)
Upfront Cost	⚠️ Higher cost ($20)	✅ More affordable ($15)

Performance Check

Paired with RTX 4090

To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.

Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.

Pentium D 820 Benchmark Check

Celeron G555 Benchmark Check

Check FPS for your specific build

Technical Specifications

Side-by-side comparison of Pentium D 820 and Celeron G555

Pentium D 820

The Pentium D 820 is manufactured by Intel. It was released in 2007-01-01. It is based on the NetBurst (2000−2006) architecture. It features 2 cores and 2 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 90 nm process technology. Socket: LGA775. Thermal design power (TDP): 95 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,412 points. Launch price was $69.

Celeron G555

The Celeron G555 is manufactured by Intel. It was released in 1 September 2012 (13 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.7 GHz, with boost up to 2.7 GHz. L3 cache: 2 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 1,427 points. Launch price was $89.

⚡

Processing Power

Both the Pentium D 820 and Celeron G555 share an identical 2-core/2-thread configuration. Boost clocks reach 2.8 GHz on the Pentium D 820 versus 2.7 GHz on the Celeron G555 — a 3.6% clock advantage for the Pentium D 820 (base: 2.8 GHz vs 2.7 GHz). The Pentium D 820 uses the NetBurst (2000−2006) architecture (90 nm), while the Celeron G555 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Pentium D 820 scores 1,412 against the Celeron G555's 1,427 — a 1.1% lead for the Celeron G555. Geekbench 6 single-core — the metric most relevant to gaming — records 166 vs 398, a 82.3% lead for the Celeron G555 that directly translates to higher frame rates. L3 cache: 0 kB on the Pentium D 820 vs 2 MB (total) on the Celeron G555.

Feature	Pentium D 820	Celeron G555
Cores / Threads	2 / 2	2 / 2
Boost Clock	2.8 GHz+4%	2.7 GHz
Base Clock	2.8 GHz+4%	2.7 GHz
L3 Cache	0 kB	2 MB (total)
L2 Cache	2 MB+700%	256 kB (per core)
Process	90 nm	32 nm-64%
Architecture	NetBurst (2000−2006)	Sandy Bridge (2011−2013)
PassMark	1,412	1,427+1%
Geekbench 6 Single	166	398+140%
Geekbench 6 Multi	—	742

🧠

Memory & Platform

The Pentium D 820 uses the LGA775 socket (PCIe 1.1), while the Celeron G555 uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR2-667 on the Pentium D 820 versus DDR3-1333 on the Celeron G555 — the Celeron G555 supports 40% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron G555 supports up to 32 GB of RAM compared to 4 GB — 155.6% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Pentium D 820) vs 16 (Celeron G555) — the Celeron G555 offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel 945,Intel 955 (Pentium D 820) and H61,H67,P67,Z68,B75,Z77 (Celeron G555).

Feature	Pentium D 820	Celeron G555
Socket	LGA775	LGA1155
PCIe Generation	PCIe 1.1	PCIe 2.0+82%
Max RAM Speed	DDR2-667	DDR3-1333+50%
Max RAM Capacity	4 GB	32 GB+700%
RAM Channels	2	2
ECC Support	❌	❌
PCIe Lanes	0	16

🔧

Advanced Features

Virtualization support: No (Pentium D 820) vs VT-x (Celeron G555). The Celeron G555 includes integrated graphics (Intel HD Graphics (Sandy Bridge)), while the Pentium D 820 requires a dedicated GPU. Primary use case: Celeron G555 targets Desktop. Direct competitor: Celeron G555 rivals Pentium G630.

Feature	Pentium D 820	Celeron G555
Integrated GPU	No	Yes
IGPU Model	—	Intel HD Graphics (Sandy Bridge)
Unlocked	—	No
AVX-512	No	No
Virtualization	No	VT-x
Target Use	—	Desktop

💰

Value Analysis

The Pentium D 820 launched at $241 MSRP, while the Celeron G555 debuted at $52. At current prices ($20 vs $15), the Celeron G555 is $5 cheaper. In terms of value (PassMark points per dollar), the Pentium D 820 delivers 70.6 pts/$ vs 95.1 pts/$ for the Celeron G555 — making the Celeron G555 the 29.6% better value option.